CN209213827U - Ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint - Google Patents
Ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint Download PDFInfo
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- CN209213827U CN209213827U CN201821672060.8U CN201821672060U CN209213827U CN 209213827 U CN209213827 U CN 209213827U CN 201821672060 U CN201821672060 U CN 201821672060U CN 209213827 U CN209213827 U CN 209213827U
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- sealing plate
- heat preservation
- interior lining
- lining panel
- preservation member
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Abstract
The utility model discloses a kind of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joints, comprising: rack；First interior lining panel and the second interior lining panel, are oppositely disposed at the inside of rack, and there are deformation gaps each other；The inside of the first interior lining panel and the second interior lining panel is arranged in first heat preservation member, arranges close to deformation gap and is wider than deformation gap；The outside of the first interior lining panel and the second interior lining panel is arranged in second heat preservation member, arranges close to deformation gap and is wider than the first heat preservation member；U-shaped labyrinth seal assemblies, are hermetically arranged and the 2nd F type sealing plate including the first sealing plate, the second sealing plate, the first F type sealing plate and Telescopic sliding around the first heat preservation member；Castable component is arranged between the first sealing plate and rack and between the first F type sealing plate and rack.The utility model can meet in the process of running 1000 DEG C of operating conditions use, can a wide range of multi-direction compression and tension compensation and sealing and thermal insulation effect it is good.
Description
Technical field
The utility model relates to the technical fields of circulating fluidized bed boiler, more particularly, are related to a kind of recirculating fluidized bed
Ignition of the boiler wind duct high-temp non-metal expansion joint.
Background technique
Usually non-metal expansion joint is selected to be attached between the furnace bottom air compartment and ignition air duct of circulating fluidized bed boiler, such as
Shown in Fig. 1.Non-metal expansion joint used need to bear about 1000 DEG C of temperature of high-temperature flue gas in ignition air duct wash away and pot
The radial displacement deformation of about 300~400mm when furnace start and stop.
Existing high temperature non-metal expansion joint unreasonable structural design, material apply be laid out it is not scientific etc. due to, lead
Cause sealing effect bad, interiors of products thermal insulation material is often emptied or since thermal insulation material is unevenly distributed, cannot be effectively
By dielectric impedances such as high-temperature smokes in the chamber that interior lining panel and insulating layer form.In all multiple-projects, all there is point windburn
Road non-metal expansion joint sealing effect is bad, and non-metal expansion joint surface overtemperature, aging are burnt out and the things such as high-temperature flue gas leakage
Therefore.
Utility model content
In order to solve the problems in the existing technology, the purpose of this utility model be for it is of the existing technology not
Foot, provides a kind of new type high temperature non-metal expansion joint, the expansion joint of the structure in the process of running, can meet 1000 DEG C of operating conditions
Using, can a wide range of multi-direction compression and tension compensation and sealing and thermal insulation effect it is good.
The utility model provides a kind of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint, and the high temperature is non-
Type metal expansion joint includes:
Rack；
First interior lining panel and the second interior lining panel, are oppositely disposed at the inside of rack, and there are deformation gaps each other；
The inside of the first interior lining panel and the second interior lining panel is arranged in first heat preservation member, simultaneously close to deformation gap arrangement
And it is wider than the deformation gap；
The outside of the first interior lining panel and the second interior lining panel is arranged in second heat preservation member, simultaneously close to deformation gap arrangement
And it is wider than first heat preservation member；
U-shaped labyrinth seal assemblies are hermetically arranged and including the first sealing plate, the second sealing around the first heat preservation member
2nd F type sealing plate of plate, the first F type sealing plate and Telescopic sliding；First sealing plate and the second sealing plate are set in parallel
It sets and vertical with the first interior lining panel respectively connect；The single head end of the first F type sealing plate is vertical with the second interior lining panel to be connect,
The double end end of first F type sealing plate is located at the first heat preservation member lower edge；The single head end of the 2nd F type sealing plate protrudes into described first
In the gap at the double end end of F type sealing plate, the double end end of the 2nd F type sealing plate is located at the lateral margin of the first heat preservation member and is parallel to institute
The first sealing plate is stated, second sealing plate protrudes into the gap at the double end end of the 2nd F type sealing plate；
Castable component is arranged between the first sealing plate and rack and between the first F type sealing plate and rack.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
State high temperature non-metal expansion joint be arranged between furnace bottom air compartment and ignition air duct and by rack respectively with the furnace bottom air compartment
It is connected with ignition air duct.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
It states the first heat preservation member and the second heat preservation member is deformable heat preservation member.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
It states the first heat preservation member and the second heat preservation member is made of ceramic fiber blanket.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
The single head end and double end end for stating the 2nd F type sealing plate can be respectively in the position-limiting actions at the double end end of the first F type sealing plate and
Telescopic slide under the guiding role of two sealing plates, the 2nd F type sealing plate are stung with the first F type sealing plate and the second sealing plate always
It closes.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
It states and is provided with covering on the outside of the second heat preservation member.
One embodiment of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to the present utility model, institute
Stating castable component includes setting in castable bitch and castable, and the castable bitch is arranged in the first interior lining panel and second
The inside of interior lining panel, the castable are fixed by castable bitch.
Compared with prior art, the ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint of the utility model can
Bear the washing away and about 300 when boiler start/ stop of about 1000 DEG C of temperature of high-temperature flue gas in ignition air duct of circulating fluidized bed boiler
The radial displacement of~400mm deforms, and sealing and thermal insulation effect are good, and non-metal expansion joint surface overtemperature will not occur, aging, burn out
With high-temperature flue gas leakage etc. accidents.
Detailed description of the invention
Fig. 1 shows the connection structure of non-metal expansion joint in the prior art.
Fig. 2 shows nonmetallic according to the ignition air duct of circulating fluidized bed boiler high temperature of the utility model exemplary embodiment
The structural schematic diagram of expansion joint.
Fig. 3 shows nonmetallic according to the ignition air duct of circulating fluidized bed boiler high temperature of the utility model exemplary embodiment
The structural schematic diagram of U-shaped labyrinth seal assemblies in expansion joint.
Fig. 4 a and Fig. 4 b are respectively illustrated when structural representation when being axially or radially displaced occurs for high temperature non-metal expansion joint
Figure.
Description of symbols:
1- rack, the first interior lining panel of 2-, the second interior lining panel of 3-, the second heat preservation member of 4-, the first heat preservation member of 5-, 6- covering, 7-
Castable bitch, 8-U type labyrinth seal assemblies, the first sealing plate of 81-, the second sealing plate of 82-, the first F type sealing plate of 83-,
The 2nd F type sealing plate of 84-.9- castable, 10- deformation gap.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Below the structure to the utility model ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint and principle into
Row explanation.
Fig. 2 shows nonmetallic according to the ignition air duct of circulating fluidized bed boiler high temperature of the utility model exemplary embodiment
The structural schematic diagram of expansion joint.
As shown in Fig. 2, exemplary embodiment according to the present utility model, the ignition air duct of circulating fluidized bed boiler high temperature
Non-metal expansion joint includes rack 1, the first interior lining panel 2, the second interior lining panel 3, the first heat preservation member 4, the second heat preservation member 5, U-shaped fan
Palace seal assembly 8 and castable component.
Wherein, high temperature non-metal expansion joint be arranged between furnace bottom air compartment and ignition air duct and by rack 1 respectively with
Furnace bottom air compartment is connected with ignition air duct.Preferably, rack 1 is metal machine frame, and interior lining panel is all made of high temperature resistant stainless steel material, with
Guarantee the intensity of high temperature non-metal expansion joint and the use of 1000 DEG C of operating conditions can be met.
According to the utility model, the first interior lining panel 2 and the second interior lining panel 3 are oppositely disposed at the inside of rack 1, each other it
Between there are deformation gap 10 so that expansion joint in the process of running can a wide range of multi-direction compression and tension compensation.
Wherein, the inside of the first interior lining panel 2 and the second interior lining panel 3 is arranged in the first heat preservation member 5, close to 10 cloth of deformation gap
It sets and is wider than deformation gap 10.The outside of the first interior lining panel 2 and the second interior lining panel 3 is arranged in second heat preservation member 4, close to deformation
Gap 10 is arranged and is wider than the first heat preservation member 5.The first heat preservation member 5 and the second heat preservation member 4 in the utility model are deformable
Heat preservation member, the first heat preservation member 5 and the second heat preservation member 4 are preferably made of ceramic fiber blanket.Also, the outside of the second heat preservation member 4
Covering 6 is provided with fixed to the second heat preservation member 4, covering 6 can be bolted in rack 1.
U-shaped labyrinth seal assemblies 8 are hermetically arranged and close including the first sealing plate 81, second around the first heat preservation member 5
2nd F type sealing plate 84 of sealing plate 82, the first F type sealing plate 83 and Telescopic sliding is begun by the fit structure of above-mentioned accessory
High-temperature flue gas is separated with the first heat preservation member 5 at last, it is ensured that high-temperature flue gas will not leak.Wherein, U-shaped labyrinth seal assemblies 8
It is preferably made of high temperature resistant stainless steel material, F type sealing plate has F type structure, and both ends are respectively single head end and double end end
And there is gap between the parallel two boards in double end end side.
Fig. 3 shows nonmetallic according to the ignition air duct of circulating fluidized bed boiler high temperature of the utility model exemplary embodiment
The structural schematic diagram of U-shaped labyrinth seal assemblies in expansion joint.
As shown in figure 3, the first sealing plate 81 and the second sealing plate 82 are arranged in parallel and vertical with the first interior lining panel 2 respectively
Connection；The single head end of first F type sealing plate 83 is vertical with the second interior lining panel to be connect, and the double end end of the first F type sealing plate 83 is located at
First heat preservation member, 5 lower edge；In the gap at the double end end that the first F type sealing plate 83 is protruded at the single head end of the 2nd F type sealing plate 84, the
The double end end of two F type sealing plates 84 is located at the lateral margin of the first heat preservation member 5 and is parallel to the first sealing plate 81, and the second sealing plate 82 is stretched
In the gap for entering the double end end of the 2nd F type sealing plate 84.
According to the utility model, the single head end and double end end of the 2nd F type sealing plate 84 can be sealed in the first F type respectively
Telescopic slide under the guiding role of the position-limiting action at the double end end of plate 83 and the second sealing plate 82, the 2nd F type sealing plate 84 is always
It is engaged with the first F type sealing plate 83 and the second sealing plate 82.Preferably, the structure size of U-shaped labyrinth seal assemblies can basis
Displacement under non-metal expansion joint operating condition is chosen, it is ensured that expansion joint is when occurring diameter or axial displacement, to ensure the 2nd F
Type sealing plate 84 is engaged and does not disengage with the first F type sealing plate 83 and the second sealing plate 82 always.
In addition, castable component is arranged between the first sealing plate 81 and rack 1 and the first F type sealing plate 83 and rack
Between 1, the effect for resisting high-temperature flue gas may be implemented, wherein castable component includes castable bitch 7 and castable 9, casting
The inside of the first interior lining panel 2 and the second interior lining panel 3 is arranged in material bitch 7, and castable 9 is fixed by castable bitch 7.
Fig. 4 a and Fig. 4 b are respectively illustrated when structural representation when being axially or radially displaced occurs for high temperature non-metal expansion joint
Figure.As shown in Figs. 4a and 4b, the utility model is by the telescopic slides of U-shaped labyrinth seal assemblies 8, by high-temperature flue gas and protects always
Warm part separates, and can effectively ensure that high-temperature flue gas will not leak；Meanwhile U-shaped labyrinth seal assemblies 8 and the first heat preservation member 5
The place being in contact does not produce relative sliding, can preferably protect the first heat preservation member 5, the first heat preservation member 5 is avoided to transport for a long time
Abrasion damage occurs after row and high-temperature flue gas is caused to leak.Also, the U-shaped labyrinth seal assemblies in the utility model are in radial position
Shifting and axial displacement direction, are all made of multiple labyrinth structure, more preferable to the sealing effect of high-temperature flue gas.
In conclusion the ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint of the utility model is able to bear and follows
In circulation fluidized bed boiler ignition air duct about 1000 DEG C of temperature of high-temperature flue gas wash away and about 300~400mm when boiler start/ stop
Radial displacement deformation, sealing and thermal insulation effect are good, and non-metal expansion joint surface overtemperature, aging will not occur, burn out and high temperature
The accidents such as smoke spillage.
The utility model is not limited to specific embodiment above-mentioned.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
It closes.
Claims (7)
1. a kind of ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint, which is characterized in that the high temperature is nonmetallic swollen
Swollen section includes:
Rack；
First interior lining panel and the second interior lining panel, are oppositely disposed at the inside of rack, and there are deformation gaps each other；
The inside of the first interior lining panel and the second interior lining panel is arranged in first heat preservation member, close to deformation gap arrangement and width
In the deformation gap；
The outside of the first interior lining panel and the second interior lining panel is arranged in second heat preservation member, close to deformation gap arrangement and width
In first heat preservation member；
U-shaped labyrinth seal assemblies are hermetically arranged and including the first sealing plate, the second sealing plate, the around the first heat preservation member
2nd F type sealing plate of one F type sealing plate and Telescopic sliding；First sealing plate and the second sealing plate be arranged in parallel and
It is vertical with the first interior lining panel respectively to connect；The single head end of the first F type sealing plate is vertical with the second interior lining panel to be connect, the first F
The double end end of type sealing plate is located at the first heat preservation member lower edge；It is close that the first F type is protruded at the single head end of the 2nd F type sealing plate
In the gap at the double end end of sealing plate, the double end end of the 2nd F type sealing plate is located at the lateral margin of the first heat preservation member and is parallel to described
One sealing plate, second sealing plate protrude into the gap at the double end end of the 2nd F type sealing plate；
Castable component is arranged between the first sealing plate and rack and between the first F type sealing plate and rack.
2. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 1, which is characterized in that institute
State high temperature non-metal expansion joint be arranged between furnace bottom air compartment and ignition air duct and by rack respectively with the furnace bottom air compartment
It is connected with ignition air duct.
3. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 1, which is characterized in that institute
It states the first heat preservation member and the second heat preservation member is deformable heat preservation member.
4. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 3, which is characterized in that institute
It states the first heat preservation member and the second heat preservation member is made of ceramic fiber blanket.
5. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 1, which is characterized in that institute
The single head end and double end end for stating the 2nd F type sealing plate can be respectively in the position-limiting actions at the double end end of the first F type sealing plate and
Telescopic slide under the guiding role of two sealing plates, the 2nd F type sealing plate are stung with the first F type sealing plate and the second sealing plate always
It closes.
6. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 1, which is characterized in that institute
It states and is provided with covering on the outside of the second heat preservation member.
7. ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint according to claim 1, which is characterized in that institute
Stating castable component includes setting in castable bitch and castable, and the castable bitch is arranged in the first interior lining panel and second
The inside of interior lining panel, the castable are fixed by castable bitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672060.8U CN209213827U (en) | 2018-10-16 | 2018-10-16 | Ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672060.8U CN209213827U (en) | 2018-10-16 | 2018-10-16 | Ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213827U true CN209213827U (en) | 2019-08-06 |
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ID=67456009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821672060.8U Active CN209213827U (en) | 2018-10-16 | 2018-10-16 | Ignition air duct of circulating fluidized bed boiler high temperature non-metal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213827U (en) |
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2018
- 2018-10-16 CN CN201821672060.8U patent/CN209213827U/en active Active
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